Thanks to Mark + Oakley for these sweet b-1b grips. I never actually heard about these but after some research i learned a bit about these grips:

The B-1B is one of the more sophisticated grips ever engineered. Highlighted by a special tread found within and on the surface of the grip, it enabled a high level of adhesion to the handlebars and the rider’s hands. Other elements found on the B-1B, such as the neoprene/lycra flange, aid with blister prevention making it one of the most complete grips in the world of BMX.This special and extremely limited edition remake is comprised of a newer, softer rubber compound and in order to maintain integrity of original pieces for collectors, a 2010 stamp is embossed on the end of the grips. This is the first release of 5 colors, which will be dropping approximately every month, with 500 sets of each